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How was it? - HSN forum - Page 2

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How was it?


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#21 dfx

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Posted 31 May 2005 - 11:44 AM

Well according to the equation provided it was 2 electrons, so I think its 193,000.

#22 gary

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Posted 31 May 2005 - 11:46 AM

What was the equation again?

#23 gary

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Posted 31 May 2005 - 11:47 AM

What was everyones percentage yield?

#24 koala_bear123

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Posted 31 May 2005 - 11:48 AM

hey my percentage yield was about 60.6% or sumthin like that

#25 gary

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Posted 31 May 2005 - 11:50 AM

I got that.

Checked my multiple choice answers against yours got 28 the same.

#26 koala_bear123

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Posted 31 May 2005 - 11:50 AM

wot did every1 rite for the flour question in the multiple choice , think it was about qu5???

#27 dfx

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Posted 31 May 2005 - 11:51 AM

I think I read somewhere about the dust risking an explosion cause of the surface area or something. Im sure it was in a past paper or sqp or something...

#28 koala_bear123

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Posted 31 May 2005 - 11:52 AM

QUOTE(gary @ May 31 2005, 12:50 PM)
I got that.

Checked my multiple choice answers against yours got 28 the same.

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mmmmmm don't know if tht is a good thing or a bad thing, lol

#29 gary

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Posted 31 May 2005 - 11:52 AM

C

#30 koala_bear123

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Posted 31 May 2005 - 11:53 AM

QUOTE(dfx @ May 31 2005, 12:51 PM)
I think I read somewhere about the dust risking an explosion cause of the surface area or something. Im sure it was in a past paper or sqp or something...

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yeah i read tht sumwhere too, thts y a put C

#31 koala_bear123

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Posted 31 May 2005 - 11:54 AM

ne one tell me how u wer meant to work out the titration qu on vitamin C, the one tht aasks for mass?

#32 FcukWIT

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Posted 31 May 2005 - 12:06 PM

QUOTE(dfx @ May 31 2005, 12:38 PM)
QUOTE(gary @ May 31 2005, 12:34 PM)
What was everyones answer to the Q=it question

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I ended up with a really small volume. Something like 900 Coulombs for the charge. (0.5 x 60 x 30)

193,000 for 24 litres, so 900 C for around about 0.112 litres. Strange... unsure.gif

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Thata exactly What I did but i am sure i got a 0.2xx L

#33 alli

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Posted 31 May 2005 - 12:09 PM

i thought the paper was ok, i got 27 answers yours. I thought the gas mask question was hard. I didnt get that at all. Think it was something to do with a catalyst now etc. For the vit C one i think: It was a 1:1 ratio so u work out the moles of iodine which are the same for vit c as its 1:1 then you use the 500cm3 and 50cm3 and work out the moles. Then to get the mass: use moles x gfm. I think thats how you do it. I also got 60.6% for the percentage yield.
Just need to wait till 9Aug now!!!

Alli xxx

#34 Tiger

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Posted 31 May 2005 - 12:11 PM

QUOTE(gary @ May 31 2005, 12:34 PM)
What was everyones answer to the Q=it question

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I got 17.28litres.

#35 koala_bear123

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Posted 31 May 2005 - 12:13 PM

Yeah i think thts wot i did for the vit C!! Think i'v did really bad in the multiple choice now though
O well....
just hav to wait and see

#36 Tiger

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Posted 31 May 2005 - 12:14 PM

QUOTE(alli @ May 31 2005, 01:09 PM)

Just need to wait till 9Aug now!!!


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But da resultz come out on the 12th August

#37 Floorball Maniac

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Posted 31 May 2005 - 12:18 PM

QUOTE(Tiger @ May 31 2005, 01:14 PM)
QUOTE(alli @ May 31 2005, 01:09 PM)

Just need to wait till 9Aug now!!!


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But da resultz come out on the 12th August

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I think its the 9th this year.

#38 Tiger

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Posted 31 May 2005 - 12:21 PM

QUOTE(Floorball Maniac @ May 31 2005, 01:18 PM)
QUOTE(Tiger @ May 31 2005, 01:14 PM)
QUOTE(alli @ May 31 2005, 01:09 PM)

Just need to wait till 9Aug now!!!


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But da resultz come out on the 12th August

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I think its the 9th this year.

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Maybe it is. Itz just that our teacher keeps saying 12th.

#39 Amna

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Posted 31 May 2005 - 12:33 PM

It was ok but it got harder nearer the end but i was expecting it to be much harder!

#40 The Wedge Effect

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Posted 31 May 2005 - 12:35 PM

I think I got 88.9% for the percentage yield question... blink.gif *PANICS*





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